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A woman performs a vertical jump. How much work was done on this woman during the jump? The jump begins in the standing position and ends the instant the woman leaves the floor. The situation includes: Womans mass: 70kg Height of center of mass at start: 1.0m Height of center of mass at take off: 1.5 m Initial vertical velocity (standing velocity): 0.0 m/s Vertical Velocity at take off: 3.5 m/s
A gun with muzzle velocity of 1200 ft/sec is fired at an angle of eight degrees above the horizontal. Find the horizontal and vertical components of the velocity
Consider a bar (L=3.00m) is sliding to the right on 2 rails with a velocity (0.75 m/s) towards a resistor (20 ohms), calculate the "Magnetic Braking force"
A fully charged capacitor with a voltage of 270 kV is discharged through a resistor. What is the voltage across the capacitor at the end of three time constants?
Oxygen in the Lungs: In the lungs, the respiratory membrane separates tiny sacs of air (pressure1.00x105Pa) from the blood in the capillaries. These sacs are called alveoli. The average radius of the alveoli is 0.125 mm, and the air inside contains 1..
A 80-kg snow skier is being pulled up a 16 ° slope by a steel (Young's modulus 2.0 x 10^11 N/m2) cable. The cable has a cross-section area of 7.0 x 10^-5 m2. what is the original (unstretched) length of the cable
An electric field is set up between two parallel plates, each of area 2.2 m2, by putting 1.0 C charge on one plate and the -1.0 C charge on the other. The plates are separated by 4.0 mm. What is the magnitude of the electric field between the plates ..
A block of mass 77 g floats on a fluid, oscillating up and down at a frequency of 8 Hz. What is the value (in N/m) of the effective spring constant of the fluid
A 15.0 kg bucket of water is suspended by a very light rope wrappedaround a solid uniform cylinder 0.300 m in diameter with mass 12.0kg. What is the time of the fall
A mass (3kg) on a string lies on a horizontal frictionless surface tied to a central point. How fast can the mass move around the circle without breaking the string
A thin uniform disk of mass M=0.100 kg and radius R=0.400 m has its center of mass is attached a distance L/4 from the bottom end of a uniform rod of mass m=0.0500 kg and length L=1.60 m the top end of the rod is attached to a frictionless pivot.
A bullet is fired through a board 9.0 cm thick in such a way that the bullet's line of motion is perpendicular to the face of the board. Find the total time the bullet is in contact with the board
An electron moves in a circular path perpendicular to the constant magnetic field with a magnitude of 2.00 mT. The angular momentum of the electron about the center of the circle is 5.50 multiplied by 10-25 J•s.
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